I'm a little confused by PGA head room.
would you teach me a little more for my application.
when I use AIN1 as psuedo differential bipolar mode(AVDD=5V, VREF=5V, AINCOM=2.5V, Gain=128),
what are PGA output signal differential range? -3.75V<Vout-diff<3.75V?
and what is the common mode voltage? VREF/2=2.5V?
but, as are PGA output signals(voutp,voutn) 2.5-3.75/2<voutp,voutm<2.5+3.75/2 ?
so, I can't utilize full ADC input range from -VREF to VREF, am I right?